标题： 混合可调磁力致动器：建模与设计 显示英文标题

标题： Hybrid Tunable Magnet Actuator: Modeling and Design

摘要： 电磁执行器在高精度应用中更受青睐。 由于线圈中的电阻损耗，在真空环境中，这种执行器在准静态操作模式下的精度会降低。 通过使用磁化状态可现场调节的软永磁体，不需要恒定功率来产生力，从而减少电阻损耗。 在本文中，研究了一种新的调节方法，以减少电阻损耗。 通过使用具有历史依赖性和非线性迟滞特性的模型，设计了一种更高效的调节算法。 此外，通过使用由硬永磁体产生的偏置通量，改进了可变磁阻可调磁铁执行器的位置精度和控制简便性。 这是通过线性化非线性力-通量关系实现的。 显示英文摘要

摘要： Reluctance actuators are preferred for high-precision applications. Due to resistive losses in the coils, the accuracy of this type of actuator will reduce in quasi-static operation mode within a vacuum environment. By using soft permanent magnets whose magnetization states are in-situ tuned, no constant power is needed to create a force and thereby the resistive losses will reduce. In this paper, a new tuning method is investigated in order to reduce the resistive losses. By using a history-dependent and non-linear hysteresis model, a more efficient tuning algorithm is designed. Besides this, the position accuracy and control simplicity of a variable reluctance tunable magnet actuator are improved by linearizing the non-linear force-flux relationship. This is achieved by using bias fluxes generated by hard permanent magnets.